The Connolly Youth Movement (CYM) (Irish: Ógra Uí Chonghaile) is an all-Ireland youth organisation affiliated to the Communist Party of Ireland but operates independently of the CPI. Internationally, the Connolly Youth Movement is affiliated to the World Federation of Democratic Youth. The CYM includes young activists from many different political backgrounds who are in opposition to imperialism and to the capitalist system in Ireland and throughout the world. It takes its name from the revolutionary socialist James Connolly.

In 2017, members of the Cork branch of the Connolly Youth Movement occupied and re-purposed three derelict buildings near UCC as part of an initiative to highlight rising levels of homelessness.[1][2][3] In 2018, two of these buildings were repossessed by the Garda Emergency Response Unit acting in conjunction with a contractor for the O'Dwyer Asset Management Company that owned the vacant properties.[4][5][6]